The general formula of alkenes is:

Practice MCQ for SSC, UPSC, RRB Exams

A. CₙH₂ₙ A.

B. CₙH₂ₙ₊₂ B.

C. CₙH₂ₙ₋₂ C.

D. CₙHₙ D.

Correct Answer: A সঠিক উত্তর: A

Explanation ব্যাখ্যা

Alkenes are unsaturated hydrocarbons containing one or more double bonds (C=C).
Their general formula is CₙH₂ₙ, where n ≥ 2.
This formula reflects that alkenes have two fewer hydrogen atoms than the corresponding alkane (CₙH₂ₙ₊₂) because of the double bond.

Option Analysis:
A. CₙH₂ₙ → Correct (alkenes)
B. CₙH₂ₙ₊₂ → Alkanes (saturated hydrocarbons)
C. CₙH₂ₙ₋₂ → Alkynes (hydrocarbons with triple bonds)
D. CₙHₙ → Not a typical general formula for these hydrocarbons

Practice MCQ for SSC, UPSC, RRB Exams

Correct Answer: A সঠিক উত্তর: A

Explanation ব্যাখ্যা

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